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Power bank enclosure guides, compatibility questions, and launch updates.
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Cell Compatibility2026/10/09
21700 DIY power bank kit: a compatibility checklist
Check the cell requirements and assembly documentation for the two-cell PowerbankCase 21700 kit at US$69. Cells are not included; soldering is required.
Buying Guides2026/10/09
Power bank capacity and USB output: a listing checklist
Separate energy capacity, input power, output power, and connector labels when reading a power bank listing.
Enclosure Comparisons2026/10/09
DIY power bank kit vs finished power bank: what changes?
Compare assembly requirements, cell inclusion, documentation and purchase details before choosing a DIY kit or finished power bank.
Buying Guides2026/10/09
What to check before buying a 21700 DIY power bank kit
Confirm assembly requirements, exact cell compatibility, package contents and purchase terms for the PowerbankCase 21700 kit.